US20030102245A1 - Vacuum fresh-maintaining plastic bag - Google Patents

Vacuum fresh-maintaining plastic bag Download PDF

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Publication number
US20030102245A1
US20030102245A1 US10/310,301 US31030102A US2003102245A1 US 20030102245 A1 US20030102245 A1 US 20030102245A1 US 31030102 A US31030102 A US 31030102A US 2003102245 A1 US2003102245 A1 US 2003102245A1
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United States
Prior art keywords
plastic bag
channels
vacuum fresh
pits
maintaining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/310,301
Inventor
Donglei Wang
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Individual
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Individual
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Filing date
Publication date
Priority claimed from CN 01258565 external-priority patent/CN2525050Y/en
Priority claimed from CN 02271822 external-priority patent/CN2560580Y/en
Application filed by Individual filed Critical Individual
Publication of US20030102245A1 publication Critical patent/US20030102245A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2023—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container

Definitions

  • the present utility model relates to a vacuum fresh-maintaining plastic bag, and particularly relates to a vacuum fresh-maintaining plastic bag with the two-layer composite structure.
  • the traditional vacuum plastic bag being used now is usually made of the PE material with the strong air permeability, which leads to the entry of air into it even after the vacuum plastic bag being packaged for sometime and loosing the fresh-maintaining function.
  • the material of the plastic bag should be the composite material, the inner layer of that is the non-poisonous PE (polyethylene) or PP (polypropylene), while the outer layer of that is made of the PA (polyamide) material without the air permeability.
  • the vacuum bag sealer used in the family is in small volume and low power, therefore it is not possible to put the whole plastic bag into the vacuum chamber for vacuum-pumping.
  • the purpose of this utility model is to provide a kind of vacuum fresh-maintaining plastic bag with the two-layer composite structure in order to improve the vacuum degree inside the packaging bag.
  • the vacuum fresh-maintaining plastic bag includes two layer thin film, and the opposite inner surface of each of the thin film is in the shape of the parallel concave-convex channel, and the channels of the two opposite inner surfaces are intersected with each other by the angle of 0° ⁇ 90° therebetween.
  • the vacuum fresh-maintaining plastic bag includes two layer thin film, and the two opposite inner surfaces both have the concave pits.
  • the said film is in two layers, the inner layer thereof is made of the PE plastic while the outer layer is made of the PA plastic, the inner layer and the outer layer are pressed into the regularly arranged pits after they are recombined together, the size of the pits within each of the two opposite inner surfaces are the same and they are in different sizes between the two opposite inner surfaces, the width of the pits are disposed in proportion according to the distance between the pits.
  • the pits on each of the two opposite surfaces are regularly arranged without communication to each other.
  • FIG. 1 shows the structural schematic view of the vacuum fresh-maintaining plastic bag according to the first embodiment of this utility model
  • FIG. 2 shows sectional schematic view of the film in the vacuum fresh-maintaining plastic bag according to the first embodiment of this utility model
  • FIG. 3 shows the structural schematic view of the vacuum fresh-maintaining plastic bag according to the second embodiment of this utility model
  • FIG. 4 shows the planar schematic view of the film according to the second embodiment of this utility model
  • FIG. 5 shows the sectional schematic view of the film in the vacuum fresh-maintaining plastic bag according to the second embodiment of this utility model
  • FIG. 6 shows the schematic view of the air flowing within the film according to the second embodiment of this utility model
  • FIG. 7 shows the structural view of the vacuum bag in the prior art.
  • the vacuum fresh-maintaining plastic bag includes two layer thin film, and the opposite inner surface of each of the thin film is in the shape of the parallel concave-convex channel, and the channels of the two opposite inner surfaces are intersected with each other by the angle of 0° ⁇ 90° therebetween.
  • the film ( 1 , 2 ) includes two layers ( 5 , 6 ), the inner layer 5 is made of the PE plastic material, while the outer layer 6 is made of the PA plastic material, the inner layer 5 and the outer layer 6 are recombined into the concave-convex channel shape, the channels 3 are arranged in line, and the films ( 5 , 6 ) are in a wavy shape, the channels 3 of the film 5 and film 6 are intersected to each other by the angle of 0° ⁇ 90° therebetween after the films ( 5 , 6 ) being packaged into the bag.
  • the section of the above channels is in the triangle shape, and the distance between the channels 3 is the same, the channels 3 are attached to each other by a platform 4 having a central line, and the width of the channels 3 is smaller than distance between adjacent central lines of adjacent platforms 4 in order to make the channel 3 have enough rigidity and toughness.
  • the vacuum fresh-maintaining plastic bag includes a two layer thin film, and the two opposite inner surfaces both have the concave pits.
  • the recess direction of the said concave pits along the opposite inner surface is directed to the outside, and the pits of the two opposite inner surfaces are intersected or being faced each other.
  • the said films ( 1 , 2 ) are in two layers ( 5 , 6 ), the inner layer 5 thereof is made of the PE plastic while the outer layer 6 is made of the PA plastic.
  • the inner layer 5 and the outer layer 6 are pressed into the regularly arranged pits after they are recombined together.
  • the pits on each of the two opposite surfaces are regularly arranged without communication to each other, the width of the pits are disposed in proportion with the distance between the pits in order to keep better air flowing, the route of the air flowing is shown in the FIG. ( 6 ).

Abstract

The vacuum fresh-maintaining plastic bag, wherein it includes two layer thin film, and the two opposite inner surface of each of the thin film is non planar surface. In the present utility model, while the vacuum fresh-maintaining plastic bag is being vacuum pumped, since the channels and the pits of the two opposite inner surfaces are intersected to each other, the air is discharged to the outside of the bag along the channels as a result of not forming the suction region near the suction nozzle and greatly improving the vacuum degree of the packaging bag.

Description

    THE TECHNICAL FIELD
  • The present utility model relates to a vacuum fresh-maintaining plastic bag, and particularly relates to a vacuum fresh-maintaining plastic bag with the two-layer composite structure. [0001]
    • THE BACKGROUND ART
  • The traditional vacuum plastic bag being used now is usually made of the PE material with the strong air permeability, which leads to the entry of air into it even after the vacuum plastic bag being packaged for sometime and loosing the fresh-maintaining function. And then it is suggested that the material of the plastic bag should be the composite material, the inner layer of that is the non-poisonous PE (polyethylene) or PP (polypropylene), while the outer layer of that is made of the PA (polyamide) material without the air permeability. The vacuum bag sealer used in the family is in small volume and low power, therefore it is not possible to put the whole plastic bag into the vacuum chamber for vacuum-pumping. In this case, it is suggested to put the opening of the plastic bag into the vacuum chamber or extend the suction nozzle into the plastic bag for vacuum-pumping. The up and down layer of the common planar plastic bag are liable to be sticked together at the position near to the [0002] suction nozzle 6 while being vacuum pumped, which results to form the annular tape 7 (referencing the FIG. 6) and the air at the rear part of the annular tape can not be taken out.
    • THE INVENTIVE CONTENT
  • The purpose of this utility model is to provide a kind of vacuum fresh-maintaining plastic bag with the two-layer composite structure in order to improve the vacuum degree inside the packaging bag. [0003]
  • According to one aspect of this utility model, the vacuum fresh-maintaining plastic bag includes two layer thin film, and the opposite inner surface of each of the thin film is in the shape of the parallel concave-convex channel, and the channels of the two opposite inner surfaces are intersected with each other by the angle of 0°≦α90° therebetween. [0004]
  • According to another aspect of this utility model, the vacuum fresh-maintaining plastic bag includes two layer thin film, and the two opposite inner surfaces both have the concave pits. [0005]
  • The recess direction of the said concave pits along the opposite inner surface is directed to the outside, and the pits of the two opposite inner surfaces are intersected or being faced each other. [0006]
  • The said film is in two layers, the inner layer thereof is made of the PE plastic while the outer layer is made of the PA plastic, the inner layer and the outer layer are pressed into the regularly arranged pits after they are recombined together, the size of the pits within each of the two opposite inner surfaces are the same and they are in different sizes between the two opposite inner surfaces, the width of the pits are disposed in proportion according to the distance between the pits. [0007]
  • The pits on each of the two opposite surfaces are regularly arranged without communication to each other. [0008]
  • In the present utility model, while the vacuum fresh-maintaining plastic bag is being vacuum pumped, since the channels and the pits of the two opposite inner surfaces are intersected to each other, the air is discharged to the outside of the bag along the channels as a result of not forming the suction region near the suction nozzle and greatly improving the vacuum degree of the packaging bag.[0009]
    • THE DESCRIPTION OF THE DRAWINGS
  • The FIG. 1 shows the structural schematic view of the vacuum fresh-maintaining plastic bag according to the first embodiment of this utility model; [0010]
  • The FIG. 2 shows sectional schematic view of the film in the vacuum fresh-maintaining plastic bag according to the first embodiment of this utility model; [0011]
  • The FIG. 3 shows the structural schematic view of the vacuum fresh-maintaining plastic bag according to the second embodiment of this utility model; [0012]
  • The FIG. 4 shows the planar schematic view of the film according to the second embodiment of this utility model; [0013]
  • The FIG. 5 shows the sectional schematic view of the film in the vacuum fresh-maintaining plastic bag according to the second embodiment of this utility model; [0014]
  • The FIG. 6 shows the schematic view of the air flowing within the film according to the second embodiment of this utility model; [0015]
  • The FIG. 7 shows the structural view of the vacuum bag in the prior art.[0016]
    • THE PREFERRED EMBODIMENTS The First Embodiment
  • As shown in the FIG. 1 and FIG. 2, the vacuum fresh-maintaining plastic bag includes two layer thin film, and the opposite inner surface of each of the thin film is in the shape of the parallel concave-convex channel, and the channels of the two opposite inner surfaces are intersected with each other by the angle of 0°<α≦90° therebetween. [0017]
  • The film ([0018] 1, 2) includes two layers (5, 6), the inner layer 5 is made of the PE plastic material, while the outer layer 6 is made of the PA plastic material, the inner layer 5 and the outer layer 6 are recombined into the concave-convex channel shape, the channels 3 are arranged in line, and the films (5, 6) are in a wavy shape, the channels 3 of the film 5 and film 6 are intersected to each other by the angle of 0°<α≦90° therebetween after the films (5, 6) being packaged into the bag. The section of the above channels is in the triangle shape, and the distance between the channels 3 is the same, the channels 3 are attached to each other by a platform 4 having a central line, and the width of the channels 3 is smaller than distance between adjacent central lines of adjacent platforms 4 in order to make the channel 3 have enough rigidity and toughness.
    • The Second Embodiment
  • As shown in the FIGS. ([0019] 3), (4), and (5), the vacuum fresh-maintaining plastic bag includes a two layer thin film, and the two opposite inner surfaces both have the concave pits. The recess direction of the said concave pits along the opposite inner surface is directed to the outside, and the pits of the two opposite inner surfaces are intersected or being faced each other. The said films (1, 2) are in two layers (5, 6), the inner layer 5 thereof is made of the PE plastic while the outer layer 6 is made of the PA plastic. The inner layer 5 and the outer layer 6 are pressed into the regularly arranged pits after they are recombined together. The pits on each of the two opposite surfaces are regularly arranged without communication to each other, the width of the pits are disposed in proportion with the distance between the pits in order to keep better air flowing, the route of the air flowing is shown in the FIG. (6).

Claims (9)

1. A vacuum fresh-maintaining plastic bag comprising two layers of thin film having two opposing inner surfaces, wherein the two opposing inner surfaces are non planar surfaces.
2. The vacuum fresh-maintaining plastic bag according to the claim 1, wherein the said two opposing inner surfaces comprise parallel concave-convex channels, and the channels of the two opposing inner surfaces intersect with each other by an angle of 0°<α≦90° therebetween.
3. The vacuum fresh-maintaining plastic bag according to the claim 2, wherein the said film comprises an inner layer and an outer layer, the inner layer thereof is made of polyethylene plastic while the outer layer is made of polyamide plastic, the inner layer and the outer layer are recombined into the concave-convex channel shape, the channels are arranged in line, and the films are in wavy shape.
4. The vacuum fresh-maintaining plastic bag according to the claim 2, wherein the channels have a triangle shape cross section and are separated by a distance, and the distance between the channels is substantially the same, the channels are attached to each other by a platform which defines a central line between the channels, and wherein the channels define a channel width that is smaller than the distance between the central line of adjacent platforms.
5. The vacuum fresh-maintaining plastic bag according to the claim 2, wherein the distance between the channels of the up and down surfaces are different from each other, but that is the same within the same surface.
6. The vacuum fresh-maintaining plastic bag according to the claim 1, wherein both of the two opposing inner surfaces have concave pits.
7. The vacuum fresh-maintaining plastic bag according to the claim 6, wherein the concave pits have a recess direction along the opposite inner surface that is directed to the outside, and the concave pits of the two opposing inner surfaces intersect or face each other.
8. The vacuum fresh-maintaining plastic bag according to the claim 6, wherein the said film is in two layers, the inner layer thereof is made of polyethylene plastic while the outer layer is made of polyamide plastic, and wherein the inner layer and the outer layer are pressed into the regularly arranged pits after they are recombined together.
9. The vacuum fresh-maintaining plastic bag according to the claim 6, wherein the concave pits within each inner surface have substantially the same size but the pits within the opposing inner surfaces have different sizes, and wherein the concave pits have a width and a spacing distance such that the width is proportional to the spacing distance between the pits.
US10/310,301 2001-12-05 2002-12-05 Vacuum fresh-maintaining plastic bag Abandoned US20030102245A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN 01258565 CN2525050Y (en) 2001-12-05 2001-12-05 Vacuum fresh-keeping plastic bag
CN01258565.3 2001-12-05
CN 02271822 CN2560580Y (en) 2002-07-16 2002-07-16 Vacuum freshness-retaining plastic bag
CN02271822,2 2002-07-16

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US20030102245A1 true US20030102245A1 (en) 2003-06-05

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US10/310,301 Abandoned US20030102245A1 (en) 2001-12-05 2002-12-05 Vacuum fresh-maintaining plastic bag

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Cited By (34)

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US20040176735A1 (en) * 2003-03-04 2004-09-09 Snell Alan K. Packaged diaper, related accessories and packaging system
US20040231294A1 (en) * 2001-04-17 2004-11-25 Shannon Daniel P. Vacuum sealable bag apparatus and method
US20050143700A1 (en) * 2003-03-04 2005-06-30 Diaperoos, Llc Manufacture of vacuum-packed diaper
US20050155898A1 (en) * 2003-03-04 2005-07-21 Diaperoos, Llc Indicia of reduced diaper viewable through encasement
US20050165377A1 (en) * 2003-07-17 2005-07-28 Diaperoos, Llc Accordion folded absorbent article
US20050238263A1 (en) * 2004-04-22 2005-10-27 Ping Lau K Vacuum sealing bag
US20050286808A1 (en) * 2004-06-29 2005-12-29 Zimmerman Dean A Flexible storage bag
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US20060159576A1 (en) * 2005-01-20 2006-07-20 Bergman Carl L Storage bag with fluid separator
US20070025648A1 (en) * 2005-07-27 2007-02-01 Kenneth Micnerski Collapsible bag for dispensing liquids and method
US20070092167A1 (en) * 2005-10-24 2007-04-26 Paul Tilman Polymeric Package With Resealable Closure And Valve, And Methods
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US20070132876A1 (en) * 2005-12-14 2007-06-14 Tsuyoshi Ohno Solid-state image pickup device, color separation image pickup optical system and image pickup apparatus
US20070172157A1 (en) * 2004-07-23 2007-07-26 Alcoa Inc. Polymeric package with resealable closure and valve and methods relating thereto
US20080000204A1 (en) * 2006-06-28 2008-01-03 S.C. Johnson Home Storage, Inc. Vacuum sealer apparatus and a film cartridge for a vacuum sealer and a means of operating the vacuum sealer and the film cartridge
US20080137996A1 (en) * 2004-04-22 2008-06-12 Lau Kong Ping Vacuum sealing bag
US20080199110A1 (en) * 2002-01-08 2008-08-21 Brent Anderson Fluids container
US20080256901A1 (en) * 2005-10-24 2008-10-23 Reynolds Foil Inc, D/B/A Reynolds Consumer Products Company Polymeric package with resealable closure and valve, and methods
KR100865863B1 (en) 2007-01-26 2008-11-03 김중돈 manufacturing method of vacuum packing film and vacuum packing fil maunfacturing device
US20090290817A1 (en) * 2004-06-29 2009-11-26 Borchardt Michael G Flexible Storage Bag
US20100177990A1 (en) * 2007-07-17 2010-07-15 Neltner Andrew E Storage bag
US20100205909A1 (en) * 2007-07-24 2010-08-19 Zimmerman Dean A Storage bag
US7784160B2 (en) 2007-03-16 2010-08-31 S.C. Johnson & Son, Inc. Pouch and airtight resealable closure mechanism therefor
US20100266222A1 (en) * 2009-04-15 2010-10-21 The Glad Products Company Bag
US7857515B2 (en) 2007-06-15 2010-12-28 S.C. Johnson Home Storage, Inc. Airtight closure mechanism for a reclosable pouch
US7857514B2 (en) 2006-12-12 2010-12-28 Reynolds Foil Inc. Resealable closures, polymeric packages and systems and methods relating thereto
US7874731B2 (en) 2007-06-15 2011-01-25 S.C. Johnson Home Storage, Inc. Valve for a recloseable container
US7887238B2 (en) 2007-06-15 2011-02-15 S.C. Johnson Home Storage, Inc. Flow channels for a pouch
US7886412B2 (en) 2007-03-16 2011-02-15 S.C. Johnson Home Storage, Inc. Pouch and airtight resealable closure mechanism therefor
US7946766B2 (en) 2007-06-15 2011-05-24 S.C. Johnson & Son, Inc. Offset closure mechanism for a reclosable pouch
US7967509B2 (en) 2007-06-15 2011-06-28 S.C. Johnson & Son, Inc. Pouch with a valve
US8397958B2 (en) 2010-08-05 2013-03-19 Ds Smith Plastics Limited Closure valve assembly for a container
JPWO2018030497A1 (en) * 2016-08-10 2019-06-13 株式会社ジェイ・エム・エス Soft medical container and nutrition feeding system using it

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US7578320B2 (en) 2004-06-29 2009-08-25 The Glad Products Company Flexible storage bag
US20070116385A1 (en) * 2004-06-29 2007-05-24 The Glad Products Company Flexible storage bag
US20060193540A1 (en) * 2004-06-29 2006-08-31 Borchardt Michael G Flexible Storage Bag
US8061899B2 (en) 2004-06-29 2011-11-22 The Glad Products Company Storage bag
US20060110079A1 (en) * 2004-06-29 2006-05-25 Zimmerman Dean A Storage bag
US7438473B2 (en) 2004-06-29 2008-10-21 The Glad Products Company Flexible storage bag
US20070292055A1 (en) * 2004-06-29 2007-12-20 Reuhs Rebecca S Bag with Valve
US20050286808A1 (en) * 2004-06-29 2005-12-29 Zimmerman Dean A Flexible storage bag
US20070172157A1 (en) * 2004-07-23 2007-07-26 Alcoa Inc. Polymeric package with resealable closure and valve and methods relating thereto
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US20070101685A1 (en) * 2004-07-23 2007-05-10 Tilman Paul A Storage system having a disposable vacuum bag
US7597479B2 (en) 2005-01-20 2009-10-06 The Glad Products Company Storage bag with fluid separator
US20060159576A1 (en) * 2005-01-20 2006-07-20 Bergman Carl L Storage bag with fluid separator
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